EP 1In the dying days of the Edwardian Empire, Christopher Tietjens enters into a destructive marriage with the beautiful but cruel socialite Sylvia. Ignoring her overt flirtation with other men, Christopher resolves to remain faithful to her, even when he encounters fearless young suffragette Valentine.
EP 2While Sylvia and Christopher are reunited publicly, their relationship remains turbulent in private. In the run up to war Christopher finds himself torn between his marriage vows and his feelings for Valentine.
EP 3Vicious rumours about Christopher abound, leading to tragedy at Groby. Sylvia finds a new admirer who proves a distraction as the war continues, and Valentine moves to London. Meanwhile, Edith and MacMaster plan a new life together.
EP 4In Rouen, an exhausted Christopher prepares soldiers for the draft. Back in London, Sylvia decides to visit her husband in France, oblivious to the consequences this will have for him.
EP 5Christopher is sent to the Front with McKechnie and Perowne. While Valentine waits for news of Christopher, Sylvia - now ensconced at Groby - makes one final, desperate play for him.
The story of a love triangle between a conservative English aristocrat, his mean socialite wife and a young suffragette in the midst of World War I and a Europe on the brink of profound change.
